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If vec(P) + vec(Q) = vec(R ) and vec(P) ...

If `vec(P) + vec(Q) = vec(R ) and vec(P) - vec(Q) = vec(S)`, then `R^(2) + S^(2)` is equal to

A

`P^(2) + Q^(2)`

B

`2(P^(2) - Q^(2))`

C

`2(P^(2) + Q^(2))`

D

4PQ

Text Solution

Verified by Experts

The correct Answer is:
C
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